Indicating-lock.



M. AUERBACH.

INDIGATING LOCK.

APPLICATION HL'BD 00124, 1910.

1OO2,356. Patented Sept. 5,1911.

56 Sai MARCUS AUERBACH, OF MONTREAL, QUEBEC, CANADA.-

INDICATINGr-LOCK.

Specification of Letters Patent.

Patented Sept. 5, 1911.

Application filed October 24, 1910. Serial No. 588,723.

To all whom 'it may concern.'

Be it known that I, MARCUS AUEREACH', resident of 207 St. James street,in the city and district of Montreal, in the Province of Quebec, in theDominion of Canada, a subject of the King of Great Britain, haveinvented certain new and useful lmprovements in indicating-Locks, ofwhich the fol lowing is a specilication.

The invention relates to improvements in indicating locks, as describedin the present specification and illustrated in the accompanyingdrawings that form part of the Same.

The invention consists essentially in the novel construction andarrangement of parts, whereby at each and every time of opening, thelock mechanism is operatively connected with the recordingmechanism andthe latter mechanism records by means of indicating hands through apeculiar multiple arrangement of toothed wheels.

rlhe objects of the invention are to devise a means of registering thenumber of times a door, case, or locked receptacle is opened, whichcannot be tampered with, to provide a neat, durable and convenient formof device and generally to construct an indicating lock in a cheap andsimple manner.

ln the drawings, Figure 1 is a plan view of the invention as applied toa padlock, showing the indicating dials. Fig. 2 is a plan view of theinterior mechanism in the same application of the invention. Fig. 3 isa. perspective detail of the key. Fig. 4 is an enlarged cross sectionalview on the line A-B in Fig. 1. Fig. 5 is a plan view of the multiplearrangement of toothed wheels showing the upper wheels. Fig. 6 is a planview of the multiple arrangement of toothed wheels showing the lowerwheels. Fig. 7 is an enlarged perspective detail of the grooved keypost. Fig. S is a perspective detail of the rocking locking bar.

Like numerals of reference indicate corresponding parts in each ligure.

Referring to the drawings, 1 is the back of the casing having the keyplug hole 2 therethrough toward one side thereof.

3 is a key plug having a vertical slot 4 therein from end to end, saidkey plug being mounted on said back 1 in said hole 2.

5 is a vertical post having suitably spaced slots therein and rigidlysecured to the back ladjacent to the key plug 3, said slots being :ofthe length thereof and rigidly secured to the back 1 and having at theupper end thereof an internal thread, thus it will be seen that thelocking bar 6 is pivoted on the post 10 and on the insertion of the keyinto the key plug 3 and on the turning of said key, the bill hook end 7of the locking bar G will be raised which will lower the lug endv 8 ofsaid locking bar correspondingly.

11 is the shackle of the lock, having the curved face 12 bet-Ween theshoulders 13 `and 14. i

15 is a post extending through a corresponding pivot hole in the shackle11 adjacent to the face 12 and rigidly secured in the back l immediatelyabove the lug 8 so that the teeth 9 engages the shoulder 14 in theclosed position of the shackle 11. The upper end of the post 15 isinternally threaded.

1G is a post rigidly secured to the back 1 Vand internally threaded atits upper end and situated immediately below the other end of theshackle 11 and above the bill hook end 7 of the locking bar 6.

17 is a flat spring having the looped end 18 around the post 16 andengaged by a suitable upwardly curved projection 19 from the lockingbar. The vother end of the spring 17 engages the shoulder 13consequently the tension of said spring in the locked position of t-heshackle is constant between the shoulder 13 and the projection 19,therefore, when the said locking bar 6 is turned on its pivot and thetoo-th 9 released from the shoulder 14, the tension of said spring willcause the shackle 11 to turn rapidly on its pivot. y

2O is a plate supported by the side Shields 21 from the back 1 below thelocking bar 6 and forming with said side shields a part casing for themultiple arrangement of wheels and the recording mechanism.

22 is a spindle j ournaled in the back land extending upwardly throughthe plate 20 and therebeyond. 23 is a toothed wheel fixedly mounted onsaid spindle 22 adjacent to the back 1.

24 is a sleeve turning on the spindle 22 and journaled in the plate and'extending upvvardly therebeyond.

25 is a toothed Wheel in ratchet form, and

fixedlymounted on the sleeve 24 immediately under the plate 20.

26 is a finger fixedly securedf aty one end to the sleeve 24 andextending laterally therefrom.

27 is a spindle journaled in the back 1 and. in the plate 2O andextending above saidI plate.

28 is a toothed Wheel fixedly mounted on the spindle 27 intermediate ofthe distance between the plate 20 and the back 1 and in alinement Withthe finger 26, said finger extending into engagement with said Wheely28.

29 is a finger at oneend fixedly secured on thel spindler 27 andAextending laterally from said 'spindle into engagement Withl the Wheel23. I

It vvillr be understood from the arrangementofvvheelsjust described,that the operation of the ratchet Wheel 25 will insure the operation ofall the Wheels in rotation, that is to say, as'the finger 26 is rigidlysecured to theratchet wheel sleeve shaft 24, at each complete revolutionof the said ratchet Wheel 25, the said finger 26 will turn said toothedWheel 28 to the extent of one tooth. This happens at every completerevolution of the said wheel 25 and on the turning of the said toothedWheel 28a completelrevolution, the finger 29 Will engage the toothedVWheel 23 and turn it to the extent of one tooth, it requiring the numberof revolutions of the Wheel 28 corresponding to the number ofk teeth onthe Wheel 23 to turn the latter a complete revolution.

30 is a spring finger or pawl rigidly secured to the lug 8 at the lowerend thereof and extending from saidv lug. into engagement With theratchet toothed Wheel 25,

' consequently at each rock` of the locking bar 6 through the operationof the key in the key plug 3, the ratchet toothed Wheel 25 will beturned to the extent of one toot-h. 5o

31 is a; checking'pawl of suitable spring material rigidly secured tothe back- 1 and extending' therefrom into engagement with the ratchettoothed'vvheel 25,. ahead ofV the finger pawl`30.

32 is a check paWl of suitable` spring material secured tothe back 1 andengaging the toothed Wheel 23.

33 isa shield extending partially around the Wheel28 protecting thesame, said Wheel 28 rubbing said shield slightl'y'to sti-li'en theoperation.

34 is the cover completely closing in the mechanism described havingholes 35 through which the posts 16,15' andf V16 project,fthe keyhole36I andthe dial casings 37 and 38 surrounding the spindle holes 39 and40 through which the spindles 22 and 27 project respectively and thesleeve 24 through the spindle hole 40.

41 is` a dial spaced by a suitable number of markings corresponding tothe number `of teeth on the Wheel 28, said markings be- `1ng indicatedon the turning of said Wheel byl the hand 42: which is secured on thetop ofthe spindle 27.

44 is a dial having a double row of markings spacing the said dial offcorrespondingly to the ratchet toothed wheel 25 and the toothed Wheel 23respectively, said markings being indicated by the hand 45 secured tothe sleeve 24 and the hand 46 secured to the spindle 22 respectively.

47 are screws inserted into the posts 10, 15 and 16 retaining said cover34 securely to said back 1.

48 is a key to beinserted through the key hole 36 into the key plug 3,the Wards of said key corresponding as regards distancing to the slotsin the key post 5 and havinga slight bend to engage the bill hook end 7of. the locking bar 6.

In the operation of this invention, the key is inserted as described andengages the bill hook end of the locking bar and this rocks the saidlocking bar on its pivot post which releases the tooth 9 from engagementwith the shoulder 14, the shackle 11 is thus sprung outwardly as` thetooth 9 slips from behind the shoulder 14. Coincidently with thismovement of they shackle and the locking bar, the spring finger 30engages the master or ratchet toothed. Wheel 25 and turns said ratchettooth Wheel to the extent of one tooth, this turns the hand 45 to theextent of one space on its corresponding dial and marks the lock ashaving been opened once. This operation is continued until the hand hastraveled completely around the dial when it will be found on the laststroke that the hand 42 has turned to the extent of one space on itscorresponding dial through the action. of the finger 26 in engagementwith the Wheel 28. After the hand 42 has covered the dial 41 then thehand 46 is operated through the finger 29 in engagement with the Wheel23.

The multiplicity by this arrangement of recording mechanism Will bereadily understood as in the first place, the ratchet Wheel must turn tothe full extent of the number of its teeth before the second Wheel isop- Wheels of 24, 12 and 18 teeth respectively,

taking them as the first, second and third Wheels according to theiroperation, the number of times that the lock opens that may be recordedis over live thousand, there fore, the increase in the number of teethWill naturally increase that total tremendously.

This mechanism has been described herein as applied to a padlock, whichis the most convenient form of device for the use of this invention, butit Will readily be understood that various applications of the inventionmay be made, such as applying it to door locks, desk locks and otherthings, though the general form and arrangementof the mechanism Willremain substantially the same, however, a certain latitude ofconstruction Will likely be desirable, so long as the salient featurespointed out in the claims for novelty following are adhered to.

What I claim as my invention is:

l. In an indicating lock, a lock mechanism, a multiple arrangement oftoothed Wheels having a master Wheel operatively connected to said lockmechanism, a finger rotating with said mast-er Wheel and operating asecond Wheel at each complete revolution of said master Wheel, thesecond wheel rotating apart from said master Wheel, a finger rotatingWith said second Wheel and operating` a third Wheel in verticalarrangement with said master Wheel, a dial for said master Wheel andthird Wheel, a dial for said second Wheel, and indicating hands operatedby said Wheels.

2. In an indicating lock, a lock mechanism, a multiple arrangement oftoothed Wheels having a master Wheel operatively connected to saidlocking mechanism, a sleeve shaft carrying said master Wheel, a fingerr0- tating said sleeve shaft and master Wheel, a second Wheel engaged bysaid linger, a spindie carrying said second Wheel, a finger rotatingWith said second Wheel. and spindle, a spindle extending through theaforesaid sleeve shaft, a third Wheel mounted on said spindle andengaged by the aforesaid second finger, an indicating hand mounted atthe upper end of said sleeve sha-ft, an indicating hand mounted at theupper end of said spindle extending through the sleeve shaft, and anindicating hand mounted at the upper end of the other spindle.

3. In an indicating lock, a lock mechanism, a multiple arrangement oftoothed Wheels having a master Wheel operatively connected to the lockmechanism, a back plate, a front plate, a pair of spindles journaled insaid plates and extending therebetween, a sleeve turning on one of saidspindles and journaled in the front plate and having said master Wheelmounted thereon, a finger fixedly mounted on said sleeve and extendinglaterally therefrom, a Wheel mounted on the other spindle and engaged bysaid finger, a linger fixedly mounted on said other spindle andextending laterally therefrom, a third Wheel lixedly mounted on thespindle extending through the sleeve toward the lower end thereof andoperated by the linger extending from the other spindle, an indicatinghand mounted on said other spindle, an indicating hand mounted on saidsleeve, and an indicating hand mounted on the spindle extending throughsaid sleeve.

4. In an indicating lock, a lock mechanism, a back plate, a front plate,a pair of spindles extending betvveen said front and back plates andjournaled, a sleeve turning on one of said spindles, a ratchet toothedwheel fixedly mounted on said sleeve, a linger fixedly mounted on saidsleeve and extending laterally therefrom, a second toother Wheel fixedlymounted on the other spindle and engaged by said linger at each completerevolution of saidratchet toothed wheel, a finger fixedly mounted on thespindle of said second toothed Wheel and extending laterally therefrom,a toothed Wheel fixedly mounted on the first spindle and engaged by thesecond finger, a pavvl secured to said lock mechanism and engaging saidratchet Wheel, a dial mounted on said front plate through whichsaidspindles extend, and indicating hands secured to the top end of saidspindles and said sleeve respectively.

5. In a device of the class described, in combination, a lock mechanism,a back plate, a partial supplementary casing secured on top of said backplate and formed of a minor front plate and side shields extendingpartially therearound between said back plate and said minor frontplate, a pair of spindles extending from said back plate through saidminor front plate, a sleeve mounted on one of said spindles andjournaled in said minor front plate, a ratchet toothed Wheel fxedlymounted on said sleeve, a paWl from said lock mechanism engaging saidratchet Wheel, a check paivl extending from said back plate and engagingsaid ratchet Wheel, a second Wheel mounted on the second spindle, alinger operated by said ratchet Wheel and engaging said second Wheel ateach complete revolution of said ratchet Wheel, a third Wheel mounted onthe first spindle, a linger operated by said second Wheel and engagingsaid third Wheel, a check pavvl secured to said back plate and engagingsaid third Wheel, and indicating hands mounted at the upper end of saidspindles and sleeve respectively.

6. In a device of the class described, in combination, a lock mechanism,a dial having a roW of numerical markings therearound a dial having adouble rov7 of numerical markings therearound, a case supporting saiddials and lock mechanism, a spindle extending from said case to saiddoublek dial'2 af sleeve turning onv said spindle and extending to.said= doubley dial, a spindle extending from` said caseto said singledial, indicating handsmounted on said spindles andy said*K sleeverespectively, a master wheel in; said: case operatively connected withsaid lock mechanism a second. wheell on said single dial?. spindleoperated by the rotation of saidl master wheel at predeterminedintervals, and a third wheel mountedon the first spindle andL operatedat predetermined intervals by the'rotation` of said second wheel.

7'. In, a; device ot the class described, in

combination, a recording mechanism, a

rocker arm forming the lockingbar operatively connected wit-h saidrecording-mechanism, a springI member compressed between said rockerarmv andthe bolt member, and a shackle member released' by said lockingbar andV sprungl therefrom by said spring member.

8. In a device' of the class described, in

combination, a recording mechanism having' a master ratchet toothedwheel, a rocking locking bar having a lug at one end and a toothAprojecting upwardly from said lug, a shackle having two shoulders in thepivoted end thereof', one of saidy shoulders being engaged.l by said'toothed projection from the locking bar, a spring at one end engagingthe other shoulderin said shackle and at the other end engaging saidlocking bar, a post pivotally supporting said spring, a back platesupporting said posts and locking bar, and a spring pawl extending fromthe lug of said locking bar into engagement with said ratchet wheel.

Signed at the oity of Montreal, Quebec, Canada, this 22nd. day ofOctober, 1910.

MARCUS AUERBACHt Witnesses:

P. SHEE, Gi. H. TRESIDDER.

Copies ofv this patent may be obtainedfor five cents each, by addressingthe Commissioner of Patents, Washington, D; C.

